Portland Fire & Rescue crews pulled Freda Vanderberg, 53, from the Willamette River at about 12:30 p.m. Saturday after several witnesses called 9-1-1 to report a person jumping off the Ross Island Bridge.

Within six minutes, firefighters on a rescue boat reached Vanderberg and pulled her from the water. She was taken to OHSU Hospital, underwent surgery and later died, said Portland police spokesman Lt. Robert King.

Vanderberg was a non-sworn employee of the Portland Police Bureau. She worked in the traffic division doing administrative tasks, King said.

"The bureau could not function without the work of our non-sworn employees. Frida consistently distinguished herself by helping people," King said. "We're very, very shocked by what has happened."